A Pan-Cancer Compendium of Genes Deregulated by Somatic Genomic Rearrangement across More Than 1,400 Cases.

Cell Rep
Authors
Keywords
Abstract

A systematic cataloging of genes affected by genomic rearrangement, using multiple patient cohorts and cancer types, can provide insight into cancer-relevant alterations outside of exomes. By integrative analysis of whole-genome sequencing (predominantly low pass) and gene expression data from 1,448 cancers involving 18 histopathological types in The Cancer Genome Atlas, we identified hundreds of genes for which the nearby presence (within 100 kb) of a somatic structural variant (SV) breakpoint is associated with altered expression. While genomic rearrangements are associated with widespread copy-number alteration (CNA) patterns, approximately 1,100 genes-including overexpressed cancer driver genes (e.g., TERT, ERBB2, CDK12, CDK4) and underexpressed tumor suppressors (e.g., TP53, RB1, PTEN, STK11)-show SV-associated deregulation independent of CNA. SVs associated with the disruption of topologically associated domains, enhancer hijacking, or fusion transcripts are implicated in gene upregulation. For cancer-relevant pathways, SVs considerably expand our understanding of how genes are affected beyond point mutation or CNA.

Year of Publication
2018
Journal
Cell Rep
Volume
24
Issue
2
Pages
515-527
Date Published
2018 07 10
ISSN
2211-1247
DOI
10.1016/j.celrep.2018.06.025
PubMed ID
29996110
PubMed Central ID
PMC6092947
Links
Grant list
K01 AG051791 / AG / NIA NIH HHS / United States
K22 CA193848 / CA / NCI NIH HHS / United States
P30 CA125123 / CA / NCI NIH HHS / United States